Mary Lou McDonald

Mary Lou McDonald (1 May 1969-) was Deputy Leader of Sinn Fein from 22 February 2009 under Gerry Adams, succeeding Pat Doherty.

Biography
Mary Lou McDonald was born in Dublin, County Dublin, Ireland on 1 May 1969, and she was a member of the conservative Fianna Fail party until 1998. After she failed to get put forward as a candidate for elections with Fianna Fail, McDonald joined the socialist Sinn Fein party, and she became a Member of the European Parliament from Dublin in 2004, the first MEP from the party. In 2009, she became Deputy Leader of Sinn Fein under Gerry Adams, and she became a Teachta Dala in 2011 and Shadow Deputy Prime Minister of Ireland in 2016.